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1 | /* |
2 | * RealVideo 3 decoder | |
3 | * copyright (c) 2007 Konstantin Shishkov | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | /** | |
23 | * @file | |
24 | * miscellaneous RV30 tables | |
25 | */ | |
26 | ||
27 | #ifndef AVCODEC_RV30DATA_H | |
28 | #define AVCODEC_RV30DATA_H | |
29 | ||
30 | #include <stdint.h> | |
31 | ||
32 | /** DC quantizer mapping for RV30 */ | |
33 | static const uint8_t rv30_luma_dc_quant[32] = { | |
34 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |
35 | 16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25 | |
36 | }; | |
37 | ||
38 | /** | |
39 | * This table is used for storing the differences | |
40 | * between the predicted and the real intra type. | |
41 | */ | |
42 | static const uint8_t rv30_itype_code[9*9*2] = { | |
43 | 0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2, | |
44 | 2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4, | |
45 | 4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2, | |
46 | 2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5, | |
47 | 3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6, | |
48 | 1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2, | |
49 | 4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4, | |
50 | 4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6, | |
51 | 5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8, | |
52 | }; | |
53 | ||
54 | /** | |
55 | * This table is used for retrieving the current intra type | |
56 | * based on its neighbors and adjustment provided by | |
57 | * code read and decoded before. | |
58 | * | |
59 | * This is really a three-dimensional matrix with dimensions | |
60 | * [-1..9][-1..9][0..9]. The first and second coordinates are | |
61 | * determined by the top and left neighbors (-1 if unavailable). | |
62 | */ | |
63 | static const uint8_t rv30_itype_from_context[900] = { | |
64 | 0, 9, 9, 9, 9, 9, 9, 9, 9, | |
65 | 0, 2, 9, 9, 9, 9, 9, 9, 9, | |
66 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
67 | 2, 0, 9, 9, 9, 9, 9, 9, 9, | |
68 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
69 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
70 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
71 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
72 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
73 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
74 | ||
75 | 0, 1, 9, 9, 9, 9, 9, 9, 9, | |
76 | 0, 2, 1, 6, 4, 8, 5, 7, 3, | |
77 | 1, 0, 2, 6, 5, 4, 3, 8, 7, | |
78 | 2, 8, 0, 1, 7, 4, 3, 6, 5, | |
79 | 2, 0, 1, 3, 8, 5, 4, 7, 6, | |
80 | 2, 0, 1, 4, 6, 7, 8, 3, 5, | |
81 | 0, 1, 5, 2, 6, 3, 8, 4, 7, | |
82 | 0, 1, 6, 2, 4, 7, 5, 8, 3, | |
83 | 2, 7, 0, 1, 4, 8, 6, 3, 5, | |
84 | 2, 8, 0, 1, 7, 3, 4, 5, 6, | |
85 | ||
86 | 1, 0, 9, 9, 9, 9, 9, 9, 9, | |
87 | 1, 2, 5, 6, 3, 0, 4, 8, 7, | |
88 | 1, 6, 2, 5, 3, 0, 4, 8, 7, | |
89 | 2, 1, 7, 6, 8, 3, 5, 0, 4, | |
90 | 1, 2, 5, 3, 6, 8, 4, 7, 0, | |
91 | 1, 6, 2, 0, 4, 5, 8, 7, 3, | |
92 | 1, 5, 2, 6, 3, 8, 4, 0, 7, | |
93 | 1, 6, 0, 2, 4, 5, 7, 3, 8, | |
94 | 2, 1, 7, 6, 0, 8, 5, 4, 3, | |
95 | 1, 2, 7, 8, 3, 4, 5, 6, 0, | |
96 | ||
97 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
98 | 0, 2, 1, 8, 7, 6, 5, 4, 3, | |
99 | 1, 2, 0, 6, 5, 7, 4, 8, 3, | |
100 | 2, 8, 7, 1, 0, 6, 4, 3, 5, | |
101 | 2, 0, 8, 1, 3, 7, 5, 4, 6, | |
102 | 2, 0, 4, 1, 7, 8, 6, 3, 5, | |
103 | 2, 0, 1, 5, 8, 4, 6, 7, 3, | |
104 | 2, 0, 6, 1, 4, 7, 8, 5, 3, | |
105 | 2, 7, 8, 1, 0, 5, 4, 6, 3, | |
106 | 2, 8, 7, 1, 0, 4, 3, 6, 5, | |
107 | ||
108 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
109 | 0, 2, 1, 3, 5, 8, 6, 4, 7, | |
110 | 1, 0, 2, 5, 3, 6, 4, 8, 7, | |
111 | 2, 8, 1, 0, 3, 5, 7, 6, 4, | |
112 | 3, 2, 5, 8, 1, 4, 6, 7, 0, | |
113 | 4, 2, 0, 6, 1, 5, 8, 3, 7, | |
114 | 5, 3, 1, 2, 8, 6, 4, 0, 7, | |
115 | 1, 6, 0, 2, 4, 5, 8, 3, 7, | |
116 | 2, 7, 0, 1, 5, 4, 8, 6, 3, | |
117 | 2, 8, 3, 5, 1, 0, 7, 6, 4, | |
118 | ||
119 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
120 | 2, 0, 6, 1, 4, 7, 5, 8, 3, | |
121 | 1, 6, 2, 0, 4, 5, 3, 7, 8, | |
122 | 2, 8, 7, 6, 4, 0, 1, 5, 3, | |
123 | 4, 2, 1, 0, 6, 8, 3, 5, 7, | |
124 | 4, 2, 6, 0, 1, 5, 7, 8, 3, | |
125 | 1, 2, 5, 0, 6, 3, 4, 7, 8, | |
126 | 6, 4, 0, 1, 2, 7, 5, 3, 8, | |
127 | 2, 7, 4, 6, 0, 1, 8, 5, 3, | |
128 | 2, 8, 7, 4, 6, 1, 3, 5, 0, | |
129 | ||
130 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
131 | 5, 1, 2, 3, 6, 8, 0, 4, 7, | |
132 | 1, 5, 6, 3, 2, 0, 4, 8, 7, | |
133 | 2, 1, 5, 3, 6, 8, 7, 4, 0, | |
134 | 5, 3, 1, 2, 6, 8, 4, 7, 0, | |
135 | 1, 6, 2, 4, 5, 8, 0, 3, 7, | |
136 | 5, 1, 3, 6, 2, 0, 8, 4, 7, | |
137 | 1, 6, 5, 2, 0, 4, 3, 7, 8, | |
138 | 2, 7, 1, 6, 5, 0, 8, 3, 4, | |
139 | 2, 5, 1, 3, 6, 8, 4, 0, 7, | |
140 | ||
141 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
142 | 1, 6, 2, 0, 5, 4, 3, 7, 8, | |
143 | 1, 6, 5, 4, 2, 3, 0, 7, 8, | |
144 | 2, 1, 6, 7, 4, 8, 5, 3, 0, | |
145 | 2, 1, 6, 5, 8, 4, 3, 0, 7, | |
146 | 6, 4, 1, 2, 0, 5, 7, 8, 3, | |
147 | 1, 6, 5, 2, 3, 0, 4, 8, 7, | |
148 | 6, 1, 4, 0, 2, 7, 5, 3, 8, | |
149 | 2, 7, 4, 6, 1, 5, 0, 8, 3, | |
150 | 2, 1, 6, 8, 4, 7, 3, 5, 0, | |
151 | ||
152 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
153 | 2, 0, 4, 7, 6, 1, 8, 5, 3, | |
154 | 6, 1, 2, 0, 4, 7, 5, 8, 3, | |
155 | 2, 7, 8, 0, 1, 6, 4, 3, 5, | |
156 | 2, 4, 0, 8, 3, 1, 7, 6, 5, | |
157 | 4, 2, 7, 0, 6, 1, 8, 5, 3, | |
158 | 2, 1, 0, 8, 5, 6, 7, 4, 3, | |
159 | 2, 6, 4, 1, 7, 0, 5, 8, 3, | |
160 | 2, 7, 4, 0, 8, 6, 1, 5, 3, | |
161 | 2, 8, 7, 4, 1, 0, 3, 6, 5, | |
162 | ||
163 | 9, 9, 9, 9, 9, 9, 9, 9, 9, | |
164 | 2, 0, 8, 1, 3, 4, 6, 5, 7, | |
165 | 1, 2, 0, 6, 8, 5, 7, 3, 4, | |
166 | 2, 8, 7, 1, 0, 3, 6, 5, 4, | |
167 | 8, 3, 2, 5, 1, 0, 4, 7, 6, | |
168 | 2, 0, 4, 8, 5, 1, 7, 6, 3, | |
169 | 2, 1, 0, 8, 5, 3, 6, 4, 7, | |
170 | 2, 1, 6, 0, 8, 4, 5, 7, 3, | |
171 | 2, 7, 8, 4, 0, 6, 1, 5, 3, | |
172 | 2, 8, 3, 0, 7, 4, 1, 6, 5, | |
173 | }; | |
174 | ||
175 | /** | |
176 | * Loop filter limits are taken from this table. | |
177 | */ | |
178 | static const uint8_t rv30_loop_filt_lim[32] = { | |
179 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5 | |
180 | }; | |
181 | #endif /* AVCODEC_RV30DATA_H */ |